HIVE-7131 : Dependencies of fetch task for tez are not shown properly (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1600710 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4867 : Deduplicate columns appearing in both the key list and value list of ReduceSinkOperator (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1600719 13f79535-47bb-0310-9956-ffa450edef68